53 lines
1.6 KiB
Ruby
53 lines
1.6 KiB
Ruby
# typed: true
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# frozen_string_literal: true
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module RuboCop
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module Cop
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module Homebrew
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# This cop checks for the use of `FileUtils.rm_f`, `FileUtils.rm_rf`, or `{FileUtils,Pathname}.rmtree`
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# and recommends the safer versions.
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class NoFileutilsRmrf < Base
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extend AutoCorrector
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MSG = "Use `rm` or `rm_r` instead of `rm_rf`, `rm_f`, or `rmtree`."
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def_node_matcher :fileutils_rm_r_f_tree?, <<~PATTERN
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(send (const {nil? cbase} :FileUtils) {:rm_rf :rm_f :rmtree} ...)
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PATTERN
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def_node_matcher :pathname_rm_r_f_tree?, <<~PATTERN
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(send (const {nil? cbase} :Pathname) :rmtree ...)
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PATTERN
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def_node_matcher :self_rm_r_f_tree?, <<~PATTERN
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(send (self) {:rm_rf :rm_f :rmtree} ...)
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PATTERN
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def_node_matcher :plain_rm_r_f_tree?, <<~PATTERN
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(send nil? {:rm_rf :rm_f :rmtree} ...)
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PATTERN
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def on_send(node)
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return if neither_rm_rf_nor_rmtree?(node)
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add_offense(node) do |corrector|
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class_name = "FileUtils." if fileutils_rm_r_f_tree?(node) || pathname_rm_r_f_tree?(node)
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new_method = if node.method?(:rm_rf) || node.method?(:rmtree)
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"rm_r"
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else
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"rm"
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end
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corrector.replace(node.loc.expression, "#{class_name}#{new_method}(#{node.arguments.first.source})")
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end
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end
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def neither_rm_rf_nor_rmtree?(node)
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!self_rm_r_f_tree?(node) && !plain_rm_r_f_tree?(node) &&
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!fileutils_rm_r_f_tree?(node) && !pathname_rm_r_f_tree?(node)
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end
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end
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end
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end
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end
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